Some of the guys were sinkers (sorry guys, lack of body fat = loss in buoyance) were definitely faster without legwork. Fascinating, really. Apparently sinking legs slow you down and I know legwork zaps your oxygen away.
I'm a sinker, too. Wish I could use a pull buoy in my next tri.
I'd rather be swimming...biking...running...and eating cheesecake...
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2008 Cervelo P2C Tri bike
2011 Trek Madone 5.5/Cobb V-Flow Max 2007 Jamis Coda/Terry Liberator
2011 Trek Mamba 29er